Topics of this game:
- a landmass above water on the earth
- the molten rock material formed when solid rock in the earth's mantle or crust melts
- the continuous circulation of water among the atmosphere, the oceans, and the earth
- a naturally formed feature on the surface of the earth
- the difference in elevation of a landform from the lowest point to the highest point
- an enormous moving shelf that forms the earth's crust
- a sometimes violent movement of the earth, produced when tectonic plates grind or slip past ea other
- a natural event when magma, gases, and water form and erupt
- physical and chemical processes that change rock characteristics on earth's surface
- the result of weathering on matter, created by the action of wind, water, ice, or gravity
